Global Patent Index - EP 3064809 B1

EP 3064809 B1 20180411 - LOCKUP CLUTCH CONTROL DEVICE

Title (en)

LOCKUP CLUTCH CONTROL DEVICE

Title (de)

VORRICHTUNG ZUM STEUERN EINER ÜBERBRÜCKUNGSKUPPLUNG

Title (fr)

DISPOSITIF DE COMMANDE D'EMBRAYAGE DE PONTAGE DE CONVERTISSEUR

Publication

EP 3064809 B1 20180411 (EN)

Application

EP 14859172 A 20141017

Priority

  • JP 2013226441 A 20131031
  • JP 2014077630 W 20141017

Abstract (en)

[origin: EP3064809A1] First temporary capacity reduction control that when acceleration ON is judged during coasting lock-up, brings lock-up clutch (20) into slip state by decreasing torque transmission capacity of lock-up clutch and subsequently returns lock-up clutch to lock-up state by increasing torque transmission capacity is executed. Control unit performing second temporary capacity reduction control that when return of accelerator pedal depression is judged during the progress of returning to lock-up state, decreases torque transmission capacity again and subsequently returns lock-up clutch to lock-up state by increasing torque transmission capacity is provided. In second temporary capacity reduction control, torque transmission capacity is decreased with predetermined torque transmission capacity by which lock-up clutch is not fully disengaged being lower limit value. Abrupt engagement of lock-up clutch and engine racing can be therefore avoided when acceleration is changed from ON to OFF during control of lock-up clutch from disengagement or slip state to lock-up state.

IPC 8 full level

F16H 61/14 (2006.01); F16H 59/18 (2006.01); F16H 61/70 (2006.01)

CPC (source: EP US)

B60W 10/026 (2013.01 - US); F16D 48/066 (2013.01 - US); F16H 45/02 (2013.01 - US); F16H 59/18 (2013.01 - EP); F16H 61/702 (2013.01 - EP); B60W 2510/0208 (2013.01 - US); B60W 2510/025 (2013.01 - US); B60W 2540/10 (2013.01 - US); B60W 2710/024 (2013.01 - US); F16D 2500/10487 (2013.01 - US); F16D 2500/70247 (2013.01 - US); F16H 2045/002 (2013.01 - US); F16H 2059/186 (2013.01 - EP); F16H 2061/145 (2013.01 - EP)

Citation (examination)

None

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

EP 3064809 A1 20160907; EP 3064809 A4 20170111; EP 3064809 B1 20180411; CN 105531513 A 20160427; CN 105531513 B 20170616; JP 6069519 B2 20170201; JP WO2015064376 A1 20170309; KR 101775296 B1 20170905; KR 20160043006 A 20160420; US 2016230822 A1 20160811; US 9523400 B2 20161220; WO 2015064376 A1 20150507

DOCDB simple family (application)

EP 14859172 A 20141017; CN 201480050560 A 20141017; JP 2014077630 W 20141017; JP 2015544918 A 20141017; KR 20167006350 A 20141017; US 201415021514 A 20141017